code: def test_sac_critic_network_outputs_single_value(self):
      network_def = continuous_networks.SACCriticNetwork()
      params = network_def.init(
          self.key, self.example_state, self.example_action
      )
  
      output = network_def.apply(
          params, self.example_state, self.example_action
      )
  
      self.assertEqual(output.shape, (1,))
  
file_path: dopamine/tests/dopamine/jax/continuous_networks_test.py
imports: from absl.testing import absltest
  from dopamine.jax import continuous_networks
  import jax
  from jax import numpy
label_desc: Use image node_id 2 for calling the SacCriticNetworkTest obj's underlying member method code with example usage: obj.test_sac_critic_network_outputs_single_value() without return types